Tire-building apparatus



. June 30, 1925.

G. WISE TIRE BUILDING APPARATUS Filed June 22 1921 2 Sheets-Smet l v- HZ June 30, 1925. 1,543,896'

G. NISE TIRE BUILDING- APPARATUS Filed June22. 192l 2 Sheets-Sheet 2 In ivf w Wee. 55M

Patented June y30, 1925.

UNITED sanar-essv GEORGE WISE, or aKnoN,v OHIO, AssGNon rro THE Bl r. GooDaIoH COMPANY, orA

` 1,543,896 PATENT YoFF-1r:

YORK, N. Y., a CORPORATION OF NEW YORK.

Trani-BUILDING Arraaafru's.

Application filed 'June k22, 1921. Serial No. 479,540.'

To aZZ Yzelten?, it may conce/m.'

- Be it known that l, GEORGE 1471er, a citi-r zen Yof the United States, residingat Akron, in the county oi Summit and State of Ohio, 5 have invented a certain new and useful Tire Building Apparatus, of which the following is a specification. .p rI`his inventionV relates toV apparatus for progressively.pressing strips of tire-building i0 material such as unvulcanized `rubberonto a tire-supportlas in the manufacture Iofsolid vehicle tires, which are usually built up in laminated form upon` a metallic tire-support or base member. The base member is coml monly formed with circumferential igr'ooves 80` tial part of the output of the calender. Furtherobjects and advantages will appear lhereinatter.

- Of the accompanying drawings: Fig. 1 isa Isideeleva-tion of a preferred embodiment of my invention;Y n

Fig. 22 is airont elevation of the same, partly in section.

Fig; 3 is a 'fragmentary view of a presser roller in operativeiposition upon the wor-.lrn 4G the latter being shown in section.

Referringto the idrawings 10, is a hollow journal standard, through the top of which is .journaled a horizontal, work-supporting shaft-11, extending an equal distance on each 43 side of Vsaid standard, provided with a sprocket 12 within said hollow standard, and adapted to be driven by intermediate means clearly shown in Fig. 1 from a calendar 14, which latter may be equipped with f the usual slitting knives (not shown) and thus adapted Ito supply strips of unvulcanized sheet rubber.

The standardlO is provided with extend ed, bearings, one of which is shown at 16 (Fig. 2), adapted to brace and preserve the alignment of said shaft. 17 is a large roller keyed upon said shaft adjacent said bear ing, one end of said roller being hollow, indicated by the numeral 19 (Fig. 2) toad commodate said bearing. Diametrically op@ posite sides of said roller lare each formed with a'pai'r of' recesses 20, 20, extending inward. from the ends of the roller, and each pair of said recesses is connected by a bearing` aperture,-parallel with` the rollers axis, for a right-andleftthreaded screw 21, 2l.` 22, 22 are end-plates for said roller,the inner one being cut away around the 'bearing 16 and both of them being formed with boarings for they right-and-left-threaded screws 21, which screws extend beyond-the outer plate 22, each screw beingA providedl atits outer end with a small spur gear 23. 24 is a large spur gear loosely journaled upon. the end of shaft 11, in mesh with gears 23,` and 25 is a'hand-wheel secured to said gear 24, being thus adaptedto turn-the right-andleft-threaded'screws 21 in the same direction.

A pair of rings 26, 26 for guiding the work slidably fit the exterior of the roller 1,7 and 1areiformed with ears or collars 27 27, extending integrally from their i inner peripheries into theA recesses 20, 20, said col-1* lars having secured therein threaded bushings28, 2S meshed with the screws 21.

The grooved tire-bases 29, V23 are pendre larly supported by the rollers 17, litt-ing between the adjustable guiding rings 26, the rollers 17 engaging the inner peripheries ol said bases at Athe top of the latter. v3() is a strip off ui'ivulcanized rubber Ydrawn from Vthe calender 14 in process of being pressed onto one of saidbases.

i A lever-31 has one end pivoted at 32 to 'the calender 14, and the other end is formed with ahousing 33 Overh'angingthe roller 17, in which housing 'is journaled on a transverse axis a turret 34 consisting of two sections 34a, 34", divided on a radial plane. Said Sections at their outer ends are formed with large, circular radial flanges, said anges being formed at their outer peripheries with corresponding bearings 35, 35, in spaced positions, and with notches 36, 36, extending radially inward Jfrom their outer circumferences. 37, 37 is a series of presser rollers of various widths and contours, journaled in said bearings of the turret 34, each presser roller being adapted to work upon a different size or type of tire-base. The tur ret 34 'as described is adapted to be turned upon its axis to bring the several presser' rollers selectively into working position. 38, 38 are spring catches sl'idably mounted in a part of the housing 33, provided with hand knobs 39, 39, and adapted to engage the notches 36 of the turret 34 to hold the latter against rotation, with' the desired presser roller in working position. 40 is a series of weights mounted upon stud-pins 41, 41 upon the housing 33 and adapted to press the selected roller of the series 37 against the work. 42 is an air hoist adapted to lift the lever 31 and turret 34 from the work to permit the insertionand removal of the latter. 43 is a belt carrier, mountedat one end upon a roller 43L journaled in the calender frame and adapted to be driven bythe calender, and at' the other end upon a roller 43b journaled upon anadjustable arm 44 eX- tending from the calender frame, said belt carrier being adapted to convey strips of rubber stock from the calender 14 to' a point suiiciently close to the tire-base that the intervening reach of stock will not break of its own weight; Y

Invthe operation of the apparatus, in case a tire-base of Aa vnew size is to be covered, the rings 26are spread apart by turning the hand wheel 25, a tire-base 29 is hung, as shown, upon the roller 17 and the rings 26 are brought toward each other by turning hand wheel 25 in the opposite direction until said rings approximately Aabut the sides of the tire-base, as shown in Fig. 2. f The catches 38 are withdrawn from the notches 36 and the turret 34 is turned on Vits axis to bring into working position one of the presser rollers 37 corresponding to the particular type of tire-base, and the turret is `there latched by the catches 38. y Rotation of the roller 17 drives the tire-base 29. The strip of rubberstock 30 is brought up from the calender to the tire-base and its end started thereon, vthe revolving tire-base thereafter drawing the Vstock strip onto itself. i The eX- haust of the air hoist 42 is opened, permitting the turret 34 to descend and the selected presser roller 37 carried thereby to press the rubber stock onto the tire-base and into the grooves thereof. When the desired amount ofjrubber has thus been applied to the base the strip is severed and .the turret 34 is lifted by means of the air hoist, permitting the removal of the work by lifting it from the roller 17, and the operation is repeated.

` Several of the devices may be closely assembled adjacent the calender, so as to utilize a substantial part of the latters output. Quiclrremoval and insertion of the tire-bases is possible with this device, since the bases are simply hung upon the overhanging rollers v17. This, as well as the quick adjustment to diiferent type `of bases, results in economy in lthe time of the calender.

As the pressure is applied to the rubber on the 'outer periphery of the tire-base` at a point .adjacent the supporting roller 17, the pressure does not result in displacement or -deformation of the tire-base. Variousmodications may be resorted to without departingffrom the scope of my invent-ion, andItdonot limit my claimswholly to the specific embodiment shown. y

I claim :i

1. Tire-building apparatus comprising a Y projecting roller adapted to support anannular tire-support hung thereon, a pair of vguide rings encircling said roller and adapted to rotatetherewith and to engage the opposite sides of said tire-support to position the same, and a right-and-left threaded member for adjusting said rings from and toward each other, said member lying within the circumference of said roller.

2. Tire-building apparatus comprisinga projecting roller adapted to support an an# nular tire-support hung thereon, a pair of guide rings encircling said roller andiadapt ed to rotate therewith and to engage the opposite sides of said tire-support to position the same, a plurality ofright-and-left threaded members lyingwithin the circumference of said roller for adjusting said rings from and towardV each other, andi ing the same. Y

In witness whereof `I have hereunto set my hand this 17 day of June 1921.

GEORGE wIsE.

means common to said members for rotat- 

